/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#pragma once

/*
 * Names of the interval timers, and structure
 * defining a timer setting:
 */
#define ITIMER_REAL 0
#define ITIMER_VIRTUAL 1
#define ITIMER_PROF 2

/*
 * The IDs of the various system clocks (for POSIX.1b interval timers):
 */
#define CLOCK_REALTIME 0
#define CLOCK_MONOTONIC 1
#define CLOCK_PROCESS_CPUTIME_ID 2
#define CLOCK_THREAD_CPUTIME_ID 3
#define CLOCK_MONOTONIC_RAW 4
#define CLOCK_REALTIME_COARSE 5
#define CLOCK_MONOTONIC_COARSE 6
#define CLOCK_BOOTTIME 7
#define CLOCK_REALTIME_ALARM 8
#define CLOCK_BOOTTIME_ALARM 9
/*
 * The driver implementing this got removed. The clock ID is kept as a
 * place holder. Do not reuse!
 */
#define CLOCK_SGI_CYCLE 10
#define CLOCK_TAI 11

#define MAX_CLOCKS 16

/*
 * AUX clock support. AUXiliary clocks are dynamically configured by
 * enabling a clock ID. These clock can be steered independently of the
 * core timekeeper. The kernel can support up to 8 auxiliary clocks, but
 * the actual limit depends on eventual architecture constraints vs. VDSO.
 */
#define CLOCK_AUX MAX_CLOCKS
#define MAX_AUX_CLOCKS 8
#define CLOCK_AUX_LAST (CLOCK_AUX + MAX_AUX_CLOCKS - 1)

#define CLOCKS_MASK (CLOCK_REALTIME | CLOCK_MONOTONIC)
#define CLOCKS_MONO CLOCK_MONOTONIC

/*
 * The various flags for setting POSIX.1b interval timers:
 */
#define TIMER_ABSTIME 0x01
